Is there a sensor to detect liquid? For example, if you use a water gun to spray water at a designated large area, the sensor can sense the specific location of the spray in the large area. The sensin...
As people's living standards improve, the requirements for home security are getting higher and higher. In recent years, intelligent home security has attracted more and more attention. This paper mai...
My graduation project is an adjustable, switching voltage-stabilized power supply. I’m still thinking about it now, and brothers and sisters are welcome to give me some help....
[i=s]This post was last edited by skyworth74 on 2022-2-13 20:25[/i]GD32L233C has 16KB of SDRAM, which is suitable for running RTOS. Nowadays, system packages are becoming more and more complex. The si...
The poll() system call is System V's I/O multiplexing solution. It solves some of the deficiencies of select(). #include
int poll(struct pollfd *fds,nfds_t nfds,int timeout); select() uses a solution ...